Line-spacing mechanism for type-writers.



`structed in UNITED STA'LE PATENT FFQE.

AUGUST SCHNEELOCH, OF ONEIDA, NEW YORK, .ASSIGNOR, BY DIRECT AND MESNEASSIGNMENTS, OF ONE-HALF TO THE OLIVER TYPEWRITER COMPANY, OF CHICAGO,ILLINOIS, A CORPORATION OF ILLINOIS, AND ONE-HALF TO UNDERWOOD TYPE-WRITER COMPANY, OF NEW YORK, N. Y., A CORPOBATION OF DELAWARE.

LINE-SPACING MECHANISM FOR TYPE-WRITERS.

Specification of Letters Patent.

yPatentedDec. "I, 1915.

Original application filed April 7, 1900, Serial No. 11,993. RenewedAngust 9, 1910, Serial No. 576,392.

Divided and this application filed March 17, 1913.

To all ywhom 'it may conf/ern lie it known that I, AUoUs'r ScnNnnLocH, acitizen ot' the United States, residing at Oneida, county of Madison,and State of New York, have invented new and useful Improvements inLine-Spacing Mechanisms for TypeflVritei-s, ot' which the following is aspecification.

My invention relates to a line spacing mechanism for typewritingmachines and consists in a new arrangement and construction of partsadapted to operate in an im proved manner for the accurate spacing oflines ot typewriting.

My improved device is desirably conthc manner to he described whereby itmay conveniently be set to' space one, two, three or more lines, orentirely to throw the line spacing device ont of operation. l

This application is a division of my renewal application Ser. No.576.392 filed August. 9, 1910, originally filed April 7, 1900, Ser. No.11,993, Patent 1,958.90Tr^1pril 15, 1913.

My invention is fully shown in the drawing herewith, in which thereference nnmerals of the description indicate the correspomling partsin the figures.

Figure 1 illustrates an embodiment of my invention in side elevation.l-`ig. 2 is a. plan view thereof and Fig. 3 shows in elevation thespacing cam detached.

In the. figures, 13S indicates ay shaft to which the platen 139 isattached to he carried by the usual cai-rige not shown; and attached tothe samel shaft is the ratchet wheel 110. Loosely mounted on said shaft,in proximity to said ratchet wheel 110, is a cam disk 111, against whichimpinges, so as to hold it in position, spring catch 112, and said disk111 is provided with a knob 113, to moc it as the operator-,may desireagainst the action of said spring 112. Said disk-111 is provided withcams and notches as shown in the drawings in connection with which thesliding pawl 111 may operate. As best'shown in Fig. 3 the cam disk has asolid 'upper portion to engage with the pawl 111 and hold it out ofengagement with the Serial No. 754,908.

teeth, and a cnt-away portion to permit engagement with the teeth. Saidpawl 111 is borne by swinging arm 115 journaled upon sliding bar 116, asshown in Figs. 1 and 2, and is held so as to operate Aboth with said camdisk 111 and said ratchet wheel 110 by means of spring 117. The forwardstroke of said pawl is limited by the end 118 of said swinging arm 115striking against abutment 119, screwed on the sideot the platen frame asshown in Figs. 1 and It is apparent that if said cam disk were. notprovided, upon each Jforward movement of the pawl, as the bar 11G wasmoved forward, it would carry the ratchet wheel 11() and with it theplaten, the full limit ot' its stroke, in this ease making the space ofthree lines. lVhen, however, the cam disk is applied, by turning thesame by means ot its knob 11S,

'it will readily be understood that the pawl may be held from engagementwith the ratchet wheel for the space of either one or two or all ot' theratchets, so that a space of one or two lines may be made, orthe pawl,and thereby the spacing mechanism, may be thrown ont o't operationentirely and the platen he allowed to rotate freely at the will of theoperator, by means ot the handknob 150, at each end of the same. Theparts are here shown in position to permit ot' operation in the lastmentioned manner and it will be seen that a. high portion 15G ot the cam111 is in engagement with the roller 152 to hold the roller away 'fromengagement with the ratchet 111. The c'atch 112 is then in engagementwith a notch 151 oi the fam. Upon 'rotating the cam to the left so thatthe catch 112 engages a notch 155 the high portion 15G of the camengaged by the pan i 111 will permit the engagement of the pawl with theratchet at a. position whereby its further movement will advance theplaten a distance of one` tooth. When so moved the high portion 15G ofthe cam is moved from engagement with the roller 152 so that the rolleris permitted to act npon the 'ratchet teeth. Upon 'further moving thecam to effect engagement of the catch with notch 1.57 the `position ofengagement of the pawl 111 With the ratchet permits of itsrotating theratchet a distance of two Ateethv thereof and a similar adjustment teffect engagement of theL catch with notch 158 permits a 'movement ofthe platen a distance of three teeth.

Spring arm 151, with its roller y152 is the ordinary dev-ice to controlthe movement of the ratchet Wheel 140, which it Will be understood isthrown out of operation by cam disk 141, whenr said platen is'allofi'vedl to more freely at the will of the operator.

engage the ratcliets o'f the wheel to turnl the platen, said cam elementhavlng an elevated and a cut-away portion respectively tolwithliold andpermit thev engagement of the pawlwith the ratchets and having' notchesto cerrespond toits positions of adjustment and a Ivieldalole retainingelement-to engage said notches whereby the cani element is re- `tame-.iin its adjusted positions.

2. il. line spacing device for typewriting machines comprising a ratchetwheel con-I Vnei-tell with the. shaft of the platen, a movyalilc camelement arranged 'adjacent thereto,

a` riaziproeative slide, a pawlvarm pivotally attached to the slideapawl 'on the arm to engage the ratchets of the wheel to turn the ilatensaid cam element havin an elerated and a cut away portion respectivelyto withhold and to permit the engagement of the pawl with the rateliets,a stop arranged in the. path o'lE the arm to he engaged therehy'to limittheI feed movement of the lslide and pawl and iii'eans lor retainingrthe parts in relative positions Ato perinit'tlie pawl to lmore teeth.V

aclv'ancej'they ratchet a distance of yone or line spacing device fortypewriting machines comprising `a ratchet Wheel connected with theplaten, a cam 'element arranged adjacent thereto, an operating pawl fadapted to Work in the ratchets of said wheel so as to turn the same,the cams on the cam element being so. arranged that upon the operativemovement of `said paWl the same may beheld .from engagement with theratchet throughout aV desi-red distance of its movement, means forretaining the cani-element in adjustedpositioma yield# vable platenretaining .element arrangedy toA engageL they ratchets and. adapted "tobe thrown out of operation thecam element.`

4. A line -spacing device for typewriting machines comprisinga ratchetwheel conin one position of Y t nected with the platen, a cameleinentarranged adjacent thereto,.an operating pawl adapted to work inthe ratchets of' said wheel so as to turn `the same, the cams on the camelement being so *arranged that upon the operative .movement of saidlpaivl the-same may be held from' engagement with the ratchet throughouta desired distance of its movement, means for retaining the cam elementin adjusted position', aresilient roller support 4suitably. arranged, aroller carried by' said support to engage the ratch- Y etswhereby theplaten is retained and said cam element being arranged to throw saidroller out ofioperation in one position..

ln testimony whereof I have signed my name` to this specification in thepresence of two subscribing witnesses.

AU( irUS'l SCHNEELOCH. Witnesses: v

lViii'ricsInn HILL, Inician F. CLARK.

